Supplier Page from Thermo Fisher Scientific for 4,4'-Diaminobiphenyl-2,2'-disulfonic acid hydrate, cont. up to 30% water
3-Fluorobenzaldehyde, 98+% from Thermo Fisher Scientific
Ethyl acrylate, 99.5%, stabilized from Thermo Fisher Scientific
Ethyl phenylpropiolate, 98% from Thermo Fisher Scientific
Ethylbenzene, 99.8%, pure from Thermo Fisher Scientific